Injured Mr Burnaz held a white rose as he was wheeled onto the bridge with his leg in a cast.

Ms Cristea, who was injured in last week's terror. (Metropolitan Police )

He joined Imams, members of the public and London’s emergency service workers in a poignant memorial to the victims.

Earlier on Wednesday, the families of Ms Cristea and Mr Burnaz issued a joint statement which read: ““Our family is so grateful for the first responders, the medical personnel and the assistance of the UK Government agencies.

“Andreea is still in a critical but stable condition and benefits from the best medical healthcare possible. We are overwhelmed by the love, support and respect for our Andreea.

“The Metropolitan Police have been and continue to work tirelessly in providing their care and support during this very difficult time.”

Five people were killed in the attack in Westminster, including the attacker and police officer Keith Palmer.

Spanish teacher Aysha Frade, who has two young children, was also among those killed, as well as US tourist Kurt Cochran and 75-year-old Leslie Rhodes.